CN116999974A - Method for realizing automatic cleaning of high-temperature rotary furnace dust collector by intelligent induction technology - Google Patents
Method for realizing automatic cleaning of high-temperature rotary furnace dust collector by intelligent induction technology Download PDFInfo
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- CN116999974A CN116999974A CN202311281245.1A CN202311281245A CN116999974A CN 116999974 A CN116999974 A CN 116999974A CN 202311281245 A CN202311281245 A CN 202311281245A CN 116999974 A CN116999974 A CN 116999974A
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- 239000000428 dust Substances 0.000 title claims abstract description 450
- 238000004140 cleaning Methods 0.000 title claims abstract description 203
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000006698 induction Effects 0.000 title claims abstract description 22
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 30
- 239000004744 fabric Substances 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of cleaning of rotary furnace dust collectors, and discloses a method for automatically cleaning a high-temperature rotary furnace dust collector by using an intelligent induction technology, which comprises the following steps: determining a cleaning mode of the dust collector according to the working state of the dust collector; the dust collector includes at least one dust collecting unit; selecting corresponding detection modes according to different cleaning modes, and acquiring the dust collection degree on the dust collection unit; dividing the cleaning time of the dust collecting unit into a plurality of time periods, acquiring the dust collecting degree on the dust collecting unit before cleaning in each time period, and selecting corresponding cleaning pressure according to the dust collecting degree on the dust collecting unit to clean the dust collecting unit; and stopping cleaning when the dust collection degree on the dust collection unit is lower than the first preset dust collection degree. The dust collector can clean the dust collecting unit in a dust removing state and a non-dust removing state, and can select proper cleaning pressure, so that the dust collecting unit is not damaged while the cleaning effect is ensured.
Description
Technical Field
The invention relates to the technical field of cleaning of rotary furnace dust collectors, in particular to a method for automatically cleaning a high-temperature rotary furnace dust collector by utilizing an intelligent induction technology.
Background
When the high-temperature rotary furnace works, the generated tail gas can be discharged after being treated by the dust collector, so that the dust content in the tail gas is reduced. When the high-temperature rotary furnace is continuously produced, tail gas can be continuously discharged, a large amount of dust can be adhered to the dust collector, if the dust collector is not cleaned timely, the efficiency of tail gas emission can be affected, so that the failure rate of the high-temperature rotary furnace during operation can be improved, the dust collector is mainly provided with a cloth bag for dust removal, and the dust collector can be damaged by the cloth bag after being blocked for a long time, so that the dust removal capability is lost.
In the prior art, the dust collector is generally cleaned after the high-temperature rotary furnace stops working so as to ensure that the dust collector can be used normally next time, but in the working process of the high-temperature rotary furnace, the dust amount collected by the dust collector can be monitored, but the dust collector needs to be cleaned after the high-temperature rotary furnace stops working; in addition, during cleaning, a plurality of cloth bags in the dust collector are cleaned at the same time, and if the pressure of cleaning air flow is not well controlled, the cloth bags are damaged. Therefore, there is a need for a method for automatically cleaning a dust collector of a high temperature rotary kiln using intelligent induction technology, which at least partially solves the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a method for automatically cleaning a dust collector of a high temperature rotary furnace by using a smart induction technology, comprising:
determining a cleaning mode of the dust collector according to the working state of the dust collector; wherein the dust collector comprises at least one dust collecting unit;
selecting corresponding detection modes according to different cleaning modes, and acquiring the dust collection degree on the dust collection unit;
dividing the cleaning time of the dust collecting unit into a plurality of time periods, acquiring the dust collecting degree on the dust collecting unit before cleaning in each time period, and selecting corresponding cleaning pressure according to the dust collecting degree on the dust collecting unit to clean the dust collecting unit;
and stopping cleaning when the dust collection degree on the dust collection unit is lower than the first preset dust collection degree.
Preferably, when the obtained dust collection degree is lower than the second preset dust collection degree, the dust collection unit is cleaned by adopting the preset cleaning pressure in the rest cleaning time.
Preferably, the cleaning mode of the dust container includes:
a first cleaning mode for simultaneously cleaning the plurality of dust collecting units;
and a second cleaning mode for cleaning the dust collecting units sequentially.
Preferably, the first detection mode corresponding to the first cleaning mode is to obtain the dust collection degree by the amount of dust attached to the dust collection unit;
the second detection mode corresponding to the second cleaning mode is to obtain the dust collecting degree through the internal and external pressure difference of the dust collecting unit.
Preferably, cleaning the plurality of dust collecting units in the first cleaning mode includes:
before cleaning in each time period, respectively acquiring the dust amount attached to each dust collecting unit, and determining the dust collecting degree of each dust collecting unit according to the dust amount; meanwhile, the internal and external pressure difference of each dust collecting unit is obtained at the last time point of cleaning in each time period, so as to calibrate the obtained dust collecting degree;
and selecting corresponding cleaning pressure to clean the dust collecting units at the same time according to the maximum dust collecting degree in the dust collecting units.
Preferably, the cleaning of the plurality of dust collecting units in sequence using the second cleaning mode includes:
determining the dust collection degree of each dust collection unit and the total dust collection degree of the plurality of dust collection units according to the obtained internal and external pressure differences of each dust collection unit, and judging whether the plurality of dust collection units need cleaning according to the total dust collection degree;
if the total dust collection degree is smaller than the third preset dust collection degree, the plurality of dust collection units do not need to be cleaned, and if the total dust collection degree is larger than the third preset dust collection degree, the plurality of dust collection units need to be cleaned;
when the plurality of dust collecting units need to be cleaned, determining the cleaning sequence of the plurality of dust collecting units according to the dust collecting degree of each dust collecting unit, and cleaning the plurality of dust collecting units in turn according to the cleaning sequence; wherein, the cleaning sequence is ordered from high to low according to the dust collection degree;
the cleaning time of each dust collecting unit is divided into a plurality of time periods, the internal and external pressure differences of the dust collecting units are obtained before cleaning in each time period, and the dust collecting degree of the dust collecting units is determined according to the internal and external pressure differences; and then selecting corresponding cleaning pressure according to the dust collection degree to clean the dust collection unit.
Preferably, the dust container includes:
the shell is provided with an air inlet and an air outlet, and the air inlet is arranged below the air outlet;
the dust collecting units are fixed in the shell through the mounting plates.
And the cleaning assembly is arranged at the top of the shell and is used for providing cleaning airflow for the dust collecting units.
Preferably, the dust collection unit is connected with the mounting plate through an elastic assembly, and the elastic assembly comprises:
the mounting cylinder is connected with the mounting plate, and the top end of the dust collecting unit is slidably connected in the mounting cylinder;
the bottom end of the movable cylinder is connected with the top of the dust collecting unit, and an annular plate is arranged on the outer side of the top end of the movable cylinder;
the pressure sensor is arranged on the inner side of the mounting cylinder, a step surface is arranged on the step surface, and a spring is connected between the pressure sensor and the annular plate.
Preferably, the cleaning assembly comprises:
the communication cavity is arranged at the top of the shell, and the top of the communication cavity is provided with an air supply part;
the telescopic parts are arranged at the bottom of the communicating cavity and selectively connected with the elastic component, so that the air supply part provides clean air flow to the corresponding dust collecting unit.
Preferably, the telescopic member includes:
the top end of the abutting ring is communicated with the communicating cavity through a corrugated pipe;
the telescopic rod is connected between the top surface of the abutting ring and the bottom surface of the communication cavity;
the valve is arranged in the abutting ring, and is in an open state when the telescopic piece stretches and in a closed state when the telescopic piece contracts.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the method for automatically cleaning the dust collector of the high-temperature rotary furnace by utilizing the intelligent induction technology, the dust collecting unit can be cleaned in the dust collecting state and the non-dust collecting state of the dust collector, and the proper cleaning pressure can be selected, so that the cleaning effect is ensured, and meanwhile, the dust collecting unit is not damaged; the failure rate of the high-temperature rotary furnace in continuous production is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram showing a front view of a dust collector in a method for automatically cleaning a dust collector of a high-temperature rotary furnace by using an intelligent induction technology according to the present invention;
FIG. 2 is a schematic side view of a dust collector in a method for automatically cleaning a dust collector of a high-temperature rotary furnace by using an intelligent induction technology according to the present invention;
FIG. 3 is a flow chart of a method for automatically cleaning a dust collector of a high temperature rotary furnace using intelligent induction technology according to the present invention;
FIG. 4 is a schematic view showing the internal structure of a dust collector in a method for automatically cleaning the dust collector of a high temperature rotary furnace using an intelligent induction technology according to the present invention;
fig. 5 is a schematic view of a part of the enlarged structure of fig. 4 according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 3, the present invention provides a method for automatically cleaning a dust collector of a high temperature rotary furnace by using an intelligent induction technology, comprising:
s1, determining a cleaning mode of the dust collector according to the working state of the dust collector; wherein the dust collector comprises at least one dust collecting unit 4; the number of dust collection units 4 is preferably two or more;
s2, selecting corresponding detection modes according to different cleaning modes, and acquiring dust collection degrees on the dust collection unit 4;
s3, dividing the cleaning time of the dust collecting unit 4 into a plurality of time periods, acquiring the dust collecting degree of the dust collecting unit 4 before cleaning in each time period, and selecting the corresponding cleaning pressure according to the dust collecting degree of the dust collecting unit 4 to clean the dust collecting unit 4;
and S4, stopping cleaning when the dust collection degree on the dust collection unit 4 is lower than a first preset dust collection degree.
The tail gas discharged from the high temperature rotary furnace enters from the air inlet end of the dust collector through the exhaust air inlet pipe 10, dust contained in the tail gas is attached to the outer side of the dust collecting unit 4 when the tail gas is dedusted through the plurality of dust collecting units 4, and the tail gas after the dust is removed is discharged from the exhaust air outlet pipe 11 arranged on the air outlet end of the dust collector; the parts of the waste gas inlet pipe 10 and the waste gas outlet pipe 11, which are connected with the dust collector, are all obliquely arranged pipe fittings, and the vibrator 8 is arranged outside the obliquely arranged pipe fittings; a hopper discharge shell 12 is arranged below the dust collector, a dust collection barrel 9 is arranged at the bottom end of the hopper discharge shell 12, and a vibrator 8 is also arranged at the outer side of the hopper discharge shell 12;
therefore, when dust is attached to the inner side walls of the waste gas inlet pipe 10, the waste gas outlet pipe 11 and the hopper discharge casing 12, the attached dust is vibrated by the vibrator 8;
the dust collecting unit 4 usually blows off the dust adhered to the outside by introducing air flow into the dust collecting unit 4, but the dust collecting unit 4 usually uses a cloth bag to remove dust, and after the air flow is introduced into the dust collecting unit 4, the dust collecting unit 4 is damaged due to excessive pressure difference between the inside and the outside, so that the pressure of the air flow introduced into the dust collecting unit 4 needs to be controlled during cleaning, so that the pressure difference between the inside and the outside of the dust collecting unit 4 can not damage the dust collecting unit 4, and the cleaning purpose can be achieved.
In the automatic cleaning method provided by the invention, the cleaning mode of the dust collector can be determined according to the working state of the dust collector, wherein the working state of the dust collector comprises a dust removing state (with tail gas inlet) and a non-dust removing state (without tail gas inlet), the cleaning mode is determined according to the two states, and then a corresponding detection mode is selected according to the cleaning mode, wherein the detection mode refers to a detection mode for detecting the dust collecting degree on the dust collecting unit 4; then cleaning the dust collecting units 4 according to the cleaning mode and the dust collecting degree, in the dust removing state, because the tail gas is always introduced, the dust collecting units 4 can be cleaned independently without influencing the dust removing effect of the tail gas, and in the non-dust removing state, no tail gas is introduced, so that the dust collecting units 4 can be cleaned simultaneously to ensure the cleaning efficiency; when cleaning, the corresponding cleaning pressure is required to be selected according to the dust collection degree, so as to ensure that the selected cleaning pressure cannot damage the dust collection unit 4, and in order to ensure the cleaning efficiency, the dust collection degree on the dust collection unit 4 is acquired again every next time period, so that the corresponding cleaning pressure is selected to continue cleaning, and in the process of detecting the dust collection degree, if the dust collection degrees of all the dust collection units 4 are lower than the first preset dust collection degree, the cleaning is stopped, that is, the execution of the subsequent incomplete cleaning time is stopped.
Therefore, by adopting the method, the dust collecting unit 4 can be cleaned in both the dust removing state and the non-dust removing state of the dust collector, and a proper cleaning pressure can be selected, so that the dust collecting unit 4 is not damaged while the cleaning effect is ensured; the failure rate of the high-temperature rotary furnace in continuous production is reduced.
In one embodiment, when the obtained dust collection degree is lower than the second preset dust collection degree, the dust collection unit 4 is cleaned with the preset cleaning pressure for the remaining cleaning time.
The second preset dust collecting degree is the minimum dust collecting degree of the dust collecting unit 4, the preset cleaning pressure is the maximum cleaning pressure when the dust collecting unit 4 is cleaned, the maximum cleaning pressure cannot damage the dust collecting unit 4, when the dust collecting degree of the dust collecting unit 4 is detected to be lower than the second preset dust collecting degree, the dust collecting unit 4 is cleaned by adopting the preset cleaning pressure, and at the moment, the cleaning pressure does not need to be adjusted according to the dust collecting degree.
In one embodiment, a cleaning mode of the dust container includes:
a first cleaning mode for simultaneously cleaning the plurality of dust collection units 4;
and a second cleaning mode for cleaning the dust collection units 4 in sequence.
When the dust collector is in a non-dust-removing state, that is, no tail gas is introduced, a first cleaning mode can be adopted, and a plurality of dust collecting units 4 are cleaned at the same time, so that the cleaning efficiency is ensured; the automatic cleaning can be performed by adopting a first cleaning mode after the high-temperature rotary furnace stops working each time;
when the dust collector is in a dust removing state, that is, when tail gas is introduced, a second cleaning mode is adopted to ensure the normal operation of the dust collector, and the plurality of dust collecting units 4 sequentially complete cleaning; the dust collector can be detected in real time during the working period of the high-temperature rotary furnace, so that the dust collector can be automatically cleaned in real time by adopting a second cleaning mode;
can prevent dust from accumulating in large quantity and the dust from being adhered too long to be cleaned, and ensure the cleaning effect and the service life of the dust collecting unit 4.
Further, the first detection mode corresponding to the first cleaning mode is to acquire the dust collection degree by the amount of dust adhering to the dust collection unit 4;
the second detection mode corresponding to the second cleaning mode is to obtain the dust collection degree by the internal and external pressure difference of the dust collection unit 4.
In the first cleaning mode, since no exhaust gas is introduced, the internal and external pressure difference of the dust collecting unit 4 is not changed, and thus it is inconvenient to obtain the dust collecting degree by the internal and external pressure difference of the dust collecting unit 4; therefore, the dust collecting degree is obtained by detecting the amount of dust attached to the dust collecting unit 4, specifically, after the dust is attached to the dust collecting unit 4, the overall weight thereof is increased, the increased weight is the amount of dust, and then the dust collecting degree corresponding to the detected amount of dust is judged; the corresponding judgment of the dust amount and the dust collection degree can be based on the correlation curve or the comparison table of the dust amount and the dust collection degree (which can be obtained by detection for a plurality of times in advance);
in the second cleaning mode, due to the exhaust gas, under the influence of the air flow, the dust collection degree can not be accurately obtained by detecting the increased weight of the dust collection unit 4; the difference between the inside and outside of the dust collecting unit 4 may be obtained in real time, for example, if the dust collecting degree of the dust collecting unit 4 is high, it means that the larger the amount of dust adhered thereon, the smaller the amount of exhaust gas passing through the dust collecting unit 4, the larger the difference between the inside and outside detected, and thus the dust collecting degree may be obtained by obtaining the difference between the inside and outside of the dust collecting unit 4 in real time.
In one embodiment, cleaning the plurality of dust collection units 4 using the first cleaning mode includes:
before cleaning in each time period, respectively acquiring the amount of dust attached to each dust collecting unit 4, and determining the dust collecting degree of each dust collecting unit 4 according to the amount of dust; meanwhile, the internal and external pressure difference of each dust collecting unit 4 is obtained at the last time point of cleaning in each time period, so as to calibrate the obtained dust collecting degree;
the plurality of dust collecting units 4 are cleaned simultaneously by selecting the corresponding cleaning pressure according to the maximum dust collecting degree in the plurality of dust collecting units 4.
When the first cleaning mode is adopted to clean the plurality of dust collecting units 4 at the same time, because the dust amounts attached to the plurality of dust collecting units 4 are different, when the dust collecting units 4 with higher dust collecting degree are cleaned by adopting larger airflow pressure, the instant internal and external pressure difference of the dust collecting units 4 is larger, and the dust collecting units 4 have risks of damage, therefore, when the cleaning is carried out, before each time period, the dust amount attached to each dust collecting unit 4 is required to be respectively acquired to determine the maximum dust collecting degree in the plurality of dust collecting units 4, and then the cleaning pressure is correspondingly selected, thereby ensuring that the cleaning pressure corresponding to the maximum dust collecting degree is adopted in each time period, and ensuring that the dust collecting units 4 are not damaged due to the overlarge pressure of the cleaning airflow while improving the cleaning efficiency;
the internal and external pressure difference of each dust collecting unit 4 can be obtained at the final time point of cleaning in each time period to obtain the corresponding dust collecting degree, so that the dust collecting degree obtained by the attached dust amount in the next time period can be conveniently calibrated, and the accuracy of the dust collecting degree obtaining is improved.
In one embodiment, sequentially cleaning the plurality of dust collection units 4 using the second cleaning mode, respectively, includes:
determining the dust collection degree of each dust collection unit 4 and the total dust collection degree of the plurality of dust collection units 4 according to the obtained internal and external pressure differences of each dust collection unit 4, and judging whether the plurality of dust collection units 4 need cleaning according to the total dust collection degree;
if the total dust collection degree is smaller than the third preset dust collection degree, the plurality of dust collection units 4 do not need to be cleaned, and if the total dust collection degree is larger than the third preset dust collection degree, the plurality of dust collection units 4 need to be cleaned;
when the plurality of dust collecting units 4 need to be cleaned, determining the cleaning sequence of the plurality of dust collecting units 4 according to the dust collecting degree of each dust collecting unit 4, and cleaning the plurality of dust collecting units 4 in turn according to the cleaning sequence; wherein, the cleaning sequence is ordered from high to low according to the dust collection degree;
the cleaning time of each dust collecting unit 4 is divided into a plurality of time periods, and before cleaning in each time period, the internal and external pressure differences of the dust collecting units 4 are obtained, and the dust collecting degree of the dust collecting units 4 is determined according to the internal and external pressure differences; the dust collecting unit 4 is then cleaned by selecting a corresponding cleaning pressure according to the dust collecting degree.
In the second cleaning mode, the influence on the dust removal of the tail gas needs to be considered to be reduced, and meanwhile, the flow rate of the tail gas passing through the dust collector is ensured; the internal and external pressure difference of the dust collecting units 4 can be monitored in real time when the dust collector removes dust, then the total dust collecting degree of all the dust collecting units 4 is obtained in real time according to the dust collecting degree of each dust collecting unit 4, and then whether the dust collecting units 4 need to be cleaned or not is judged according to the total dust collecting degree, for example, the total dust collecting degree can be set to be higher than a third preset dust collecting degree, the cleaning is needed, the cleaning is not needed when the total dust collecting degree is lower than the third preset dust collecting degree, and the third preset dust collecting degree can be set to be 50%;
when cleaning is needed, the plurality of dust collecting units 4 are cleaned sequentially from high to low according to the cleaning sequence of the dust collecting degree, and the dust collecting units are not cleaned simultaneously, so that the dust collection and the discharge of tail gas are not influenced, the dust collecting units 4 with the largest attached dust amount can be cleaned preferentially, and the dust collection and the discharge effects of the subsequent tail gas are ensured;
specifically, the cleaning process of each dust collecting unit 4 is divided into a plurality of time periods, and cleaning is performed by adopting cleaning pressure corresponding to the dust collecting degree in each time period, so that the damage of the dust collecting unit 4 is prevented while the cleaning efficiency is ensured.
As shown in fig. 4, in one embodiment, the dust container includes:
the shell 1 is provided with an air inlet 2 and an air outlet 3, and the air inlet 2 is arranged below the air outlet 3;
a plurality of dust collection units 4 fixed in the housing 1 by a mounting plate 5;
a cleaning assembly 6 is provided at the top of the housing 1 for providing a cleaning air flow to the plurality of dust collecting units 4.
The below of casing 1 is connected with funnel ejection of compact shell 12, and high temperature rotary furnace exhaust tail gas is got into in casing 1 through air inlet 2, removes dust through a plurality of dust collection unit 4, then is discharged to gas outlet 3 by dust collection unit 4's top, and mounting panel 5 divides casing 1 into upper and lower two parts, and tail gas can only be discharged by dust collection unit 4's top, and clean subassembly 6 can let in clean air current to a plurality of dust collection unit 4 in, has realized dust collection unit 4's cleanness.
As shown in fig. 5, further, the dust collection unit 4 is connected to the mounting plate 5 through an elastic assembly 7, and the elastic assembly 7 includes:
a mounting cylinder 710 connected to the mounting plate 5, wherein the top end of the dust collection unit 4 is slidably connected to the mounting cylinder 710;
a movable cylinder 720, the bottom end of which is connected with the top of the dust collecting unit 4, and the outer side of the top end of which is provided with an annular plate 730;
the pressure sensor 740, the inside of the installation tube 710 is provided with a step surface, the step surface is provided with the pressure sensor 740, and a spring 750 is connected between the pressure sensor 740 and the annular plate 730.
As shown in fig. 5, further, the cleaning assembly 6 includes:
a communication cavity 610 disposed at the top of the housing 1, the top of the communication cavity 610 being provided with an air supply part 620;
a plurality of telescopic members 630 are provided at the bottom of the communication chamber 610, and the telescopic members 630 are selectively connected with the elastic members 7 so that the air supply part 620 supplies the cleaning air flow into the corresponding dust collection unit 4.
Wherein, a uniform flow structure is provided in the communication chamber 610, so that the gas supplied from the gas supply part 620 uniformly flows into each expansion member 630; the uniform flow structure can be a uniform flow plate provided with a plurality of small holes;
the dust collecting unit 4 comprises a framework and a cloth bag sleeved outside the framework, a first pressure sensor is arranged on the framework, and a second pressure sensor is arranged at the lower part of the shell 1, which is positioned on the mounting plate 5.
When cleaning is not needed, the cleaning component 6 does not work, the bottom end of the telescopic component 630 is not contacted with the elastic component 7, and the tail gas is discharged to the air outlet 3 from the top end of the dust collecting unit 4 after passing through the dust collecting unit 4;
when the dust is not attached to the dust collecting unit 4, an initial pressure value is sensed by the pressure sensor 740, and after the dust is attached to the outside of the dust collecting unit 4, the weight of the dust is increased, the annular plate 730 presses the pressure sensor 740, the pressure sensor 740 detects a detected pressure value after the dust is attached, and a difference between the detected pressure value and the initial pressure value is an increased dust amount, so that a corresponding dust collecting degree can be obtained;
when cleaning is performed in the first cleaning mode, the amount of dust is obtained by detecting the pressure sensor 740 before cleaning, so as to obtain the dust collection degree corresponding to the dust amount and the cleaning pressure (maximum internal and external pressure difference) which can be borne by the dust collection unit 4 corresponding to the maximum dust collection degree in the time period, then the telescopic member 630 (which can be driven by electric power) is driven to move downwards to contact with the top surface of the annular plate 730, and then the cleaning air flow can be introduced into the communication cavity 610 through the air supply part 620 at the determined cleaning pressure, and then the cleaning air flow enters the inside of the dust collection unit 4 and blows air to the outside of the dust collection unit 4 for cleaning;
in addition, during the cleaning process, whether the dust collecting unit 4 is damaged or not can be monitored in real time; specifically, the pressure condition is monitored in real time by the first pressure sensor and the second pressure sensor, and the internal and external pressure difference of the dust collecting unit 4 corresponding to the maximum dust collecting degree in the time period is sensed, if the variation of the internal and external pressure difference of the dust collecting unit 4 at a certain moment is not matched with the variation of the dust amount monitored in real time by the pressure sensor 740 (the variation of the internal and external pressure difference is larger, and the dust amount normally changes with the time), the damage of the dust collecting unit 4 is indicated.
When cleaning is performed in the second cleaning mode, the tail gas is continuously introduced from the air inlet 2, and the cleaning method of the second cleaning mode is adopted to sequentially clean the plurality of dust collecting units 4, so that the telescopic members 630 corresponding to the dust collecting units 4 can descend to contact with the annular plate 730 according to the cleaning sequence, the air supply part 620 only cleans the dust collecting units 4, and the rest dust collecting units 4 can work normally, so that the cleaning efficiency is ensured, and the dust removal and the discharge of the tail gas are not influenced.
As shown in fig. 5, further, the telescopic member 630 includes:
an abutment ring 631, the tip of which communicates with the communication chamber 610 through a bellows 632;
a telescopic rod 633 connected between the top surface of the abutment ring 631 and the bottom surface of the communication chamber 610;
a valve 634 disposed within the abutment ring 631, the valve 634 being open when the telescoping member 630 is extended and closed when the telescoping member 630 is retracted.
The valve 634 comprises a first orifice plate arranged in the abutting ring 631 and a second orifice plate arranged above the first orifice plate, the second orifice plate is connected with the communication cavity 610 through a connecting rod, and the hole sites of the first orifice plate and the hole sites on the second orifice plate are arranged in a staggered manner; when the abutment ring 631 moves down, the first orifice plate moves down and the second orifice plate is in a fixed state, whereby the valve 634 is opened.
When the corresponding dust collecting unit 4 needs to be cleaned, the telescopic rod 633 is extended to drive the abutting ring 631 to move downwards, the corrugated pipe 632 is extended simultaneously, and when the abutting ring 631 contacts with the annular plate 730, the telescopic rod 633 does not move downwards any more, so that cleaning can be started.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. The method for realizing automatic cleaning of the dust collector of the high-temperature rotary furnace by utilizing the intelligent induction technology is characterized by comprising the following steps of:
determining a cleaning mode of the dust collector according to the working state of the dust collector; wherein the dust collector comprises at least one dust collecting unit (4);
selecting corresponding detection modes according to different cleaning modes, and acquiring the dust collection degree on the dust collection unit (4);
dividing the cleaning time of the dust collecting unit (4) into a plurality of time periods, acquiring the dust collecting degree on the dust collecting unit (4) before cleaning in each time period, and selecting corresponding cleaning pressure according to the dust collecting degree on the dust collecting unit (4) to clean the dust collecting unit (4);
when the dust collection degree on the dust collection unit (4) is lower than the first preset dust collection degree, the cleaning is stopped.
2. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by utilizing the intelligent induction technology according to claim 1, wherein when the acquired dust collection degree is lower than a second preset dust collection degree, the dust collection unit (4) is cleaned by adopting preset cleaning pressure in the rest cleaning time.
3. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 1, wherein the cleaning mode of the dust collector comprises the following steps:
a first cleaning mode for simultaneously cleaning the plurality of dust collection units (4);
and a second cleaning mode for cleaning the dust collecting units (4) in sequence.
4. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 3, wherein the first detection mode corresponding to the first cleaning mode is that the dust collection degree is obtained by the amount of dust attached to the dust collection unit (4); a second detection mode corresponding to the second cleaning mode is to acquire the dust collection degree through the internal and external pressure difference of the dust collection unit (4).
5. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 4, wherein the cleaning of the plurality of dust collecting units (4) in the first cleaning mode comprises:
before cleaning in each time period, respectively acquiring the dust amount attached to each dust collecting unit (4), and determining the dust collecting degree of each dust collecting unit (4) according to the dust amount;
according to the maximum dust collection degree in the dust collection units (4), selecting corresponding cleaning pressure to clean the dust collection units (4) simultaneously.
6. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 4, wherein the step of sequentially cleaning the plurality of dust collecting units (4) in the second cleaning mode comprises the steps of:
determining the dust collection degree of each dust collection unit (4) and the total dust collection degree of the plurality of dust collection units (4) according to the obtained internal and external pressure differences of each dust collection unit (4), and judging whether the plurality of dust collection units (4) need cleaning according to the total dust collection degree;
if the total dust collection degree is smaller than the third preset dust collection degree, the plurality of dust collection units (4) do not need to be cleaned, and if the total dust collection degree is larger than the third preset dust collection degree, the plurality of dust collection units (4) need to be cleaned;
when the plurality of dust collecting units (4) need to be cleaned, determining the cleaning sequence of the plurality of dust collecting units (4) according to the dust collecting degree of each dust collecting unit (4), and cleaning the plurality of dust collecting units (4) in sequence according to the cleaning sequence; wherein, the cleaning sequence is ordered from high to low according to the dust collection degree;
the cleaning time of each dust collecting unit (4) is divided into a plurality of time periods, the internal and external pressure differences of the dust collecting units (4) are obtained before cleaning in each time period, and the dust collecting degree of the dust collecting units (4) is determined according to the internal and external pressure differences; then, the corresponding cleaning pressure is selected according to the dust collection degree to clean the dust collection unit (4).
7. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 1, wherein the dust collector comprises:
the shell (1) is provided with an air inlet (2) and an air outlet (3), and the air inlet (2) is arranged below the air outlet (3);
a plurality of dust collecting units (4) fixed in the shell (1) through a mounting plate (5);
and a cleaning assembly (6) provided at the top of the housing (1) for providing a cleaning air flow to the plurality of dust collecting units (4).
8. The method for automatically cleaning the dust collector of the high-temperature rotary furnace by using the intelligent induction technology according to claim 7, wherein the dust collecting unit (4) is connected with the mounting plate (5) through an elastic assembly (7), and the elastic assembly (7) comprises:
a mounting cylinder (710) connected with the mounting plate (5), wherein the top end of the dust collecting unit (4) is slidably connected in the mounting cylinder (710);
a movable cylinder (720), the bottom end of which is connected with the top of the dust collecting unit (4), and the outer side of the top end of which is provided with an annular plate (730);
the pressure sensor (740), the mounting cylinder (710) inboard is equipped with the step face, be equipped with pressure sensor (740) on the step face, be connected with spring (750) between pressure sensor (740) and annular plate (730).
9. The method for automatically cleaning a dust collector of a high temperature rotary kiln using a smart induction technique according to claim 8, characterized in that the cleaning assembly (6) comprises:
a communication cavity (610) arranged at the top of the shell (1), wherein an air supply part (620) is arranged at the top of the communication cavity (610);
and a plurality of telescopic members (630) arranged at the bottom of the communication cavity (610), wherein the telescopic members (630) are selectively connected with the elastic components (7) so that the air supply part (620) supplies clean air flow into the corresponding dust collecting unit (4).
10. The method for automatically cleaning a dust collector of a high temperature rotary kiln using a smart induction technique according to claim 9, wherein the telescopic member (630) comprises:
an abutting ring (631) the top end of which communicates with the communication chamber (610) through a bellows (632);
a telescopic rod (633) connected between the top surface of the abutment ring (631) and the bottom surface of the communication chamber (610);
and a valve (634) arranged in the abutting ring (631), wherein the valve (634) is in an open state when the telescopic piece (630) stretches and in a closed state when the telescopic piece (630) contracts.
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| CN202311281245.1A CN116999974B (en) | 2023-10-07 | 2023-10-07 | Method for realizing automatic cleaning of high-temperature rotary furnace dust collector by intelligent induction technology |
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| CN202311281245.1A CN116999974B (en) | 2023-10-07 | 2023-10-07 | Method for realizing automatic cleaning of high-temperature rotary furnace dust collector by intelligent induction technology |
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| CN116999974B (en) | 2024-01-05 |
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